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Hypoxis
''Hypoxis'' is a genus of flowering plants belonging to the family Hypoxidaceae. The genus has an "almost cosmopolitan" distribution, occurring in Africa, the Americas, Asia, and Australia.〔Singh, Y. (Natal Herbarium, Durban). (''Hypoxis''. ) plantzafrica: South African National Biodiversity Institute. 2004.〕 Europe lacks native species.〔(''Hypoxis''. ) Flora of China.〕 Most species are in the Southern Hemisphere, especially in southern Africa.〔(''Hypoxis''. ) Flora of North America.〕 Common names for the genus include star-grass,〔 star lily, yellow stars, African potato,〔 and stars.〔(''Hypoxis''. ) FloraBase. Western Australian Herbarium.〕 ==Description== These plants are perennial herbs with corms or rhizomes. Some have tubers. The aboveground herbage is a layered cluster of lance-shaped, linear, or hairlike leaves, sometimes sheathed together at the bases. The blades are usually at least slightly hairy. The flowers are borne on a short, stemlike scape in a raceme or umbel arrangement, or sometimes singly. The flower has six yellow tepals which may be hairy, especially on the undersides. The undersides may also be whitish or tinged green or red. Occasional flowers have 4 or 8 tepals. The fruit is a capsule with a few to many small, oily seeds.〔〔〔 The seeds are needed to identify many species. Most have seeds less than 2 millimeters long, so microscopic examination is required.〔Zona, S., et al. (2009). (A seed atlas of ''Hypoxis'' from eastern North America. ) ''J. Torrey Bot. Soc'' 136(1) 26-32.〕
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